Printing form and press.



` Patented Nov. 27, soo.

No. 662,&65.

E. HETT.

PRNTING FORM AND PRESS. (Application filed Nov. 20, 1899.)

4 shans- Sheet I.

INVENTOH .vil/4 3 No. &62,865. Patented Nov. 27, !900.

` E. HETT.

PRINTING FORM AND PRESS.

(Application filed Nov. 20, 1899.)

4 Sheets-Sheet 2.

(NdModeL) INVENTOR VW ATTORNEYS &MO Y

` I i i WITNESSES! & M/W

nn: nonns psrzns co. PHOTO-LITHD WASNINGTON, u. c.

No. 662365. Patented Nov. 27, !900. E. HETT.

PRINTING FORM AND PRESS.

V (Application filed Nov. 20, 1899. (No Model.) 4 Sheets-Sheet 3.

INVENTOR & L Hfl:

BY W M( ATTORNEY 5.

4 -mfP.

w %M/522% s WWW %n I v ,mn v *M No. 662,&65. Patented Nov. 27, 1900. E. HETT;

PRINTING FOBM AND PRESS.

(Application filed Nov. 20, 1899.] (No Model.) 4 Sheets-Sheet 4.

IHNIIIIIllllfllllllllllll ATTORNEY WITNESSES: '1 INVENTOR rra mames p PATENT men EDWARD HETT, OF NEN/V YORK, N. Y;

rain-No Font/l AND nanes.

SPEGIFICATION forming part of Letters Patent No. 662,865, dated November 27, 1906.

Application filed November ZO, l899. Serial Ne. 73 7,652 &No model TO (all whont it may concern:

Be it known that I, EDWARD HETT, a citizen of the United States, and a resident of New York, (New Dorp,) county of Richmond, and State of New York, have invented certain new` and useful Improvements in Printing Forms and Presses, of which the following is a specification.

This invention relates to presses, and more particularly to printing-forms and their supports.

The invention seeks to provide printingforms made of any suitable material and which may be used for relief or intaglio printing, but especially such as are adapted for lithographic printing, the term litho graphic being employed herein in its generic sense and not limited to the use of stone.

The invention consists in the features of Construction and arrangement hereinafter set forth.

In the accompanying drawings, forming part of this specification, I have illustrated some of the different embodiments capable of eXpressing ny invention.

Figure l is a longitudinal sectional eleva- -tion permanently Secured to a shaft and nounted in a press. Fgs. 2, 3, and 4 are sectional elevations on the lines 2 2, 3 3, and 4 4:, respectively, and looking in the direction of the arrows: Fig. 5 is a longitndinal sectional elevation of a printing-form removable from end journals and supported by the press. Fig. 6 is a similar View of a printing- 'form removable from a supporting-shaft. Fig. 7 is a similar View of a printing-form having per-manently-attached end journalsl Fig. S is a similar View of a printing-form removable from its shaft. Fig. 9 is a side elevaiion, pa'tially in section, showing a printing-press in diagram.

Referring now particularly to the strnctural details ill strated in the drawings, and first to tle printing-forns shown in Figs. 1, 2, 3, and l, 1 is a printing form permanently secnred on the shaft 2, so that the printingform and shat't may be removed from and replaced in a press together. On the shaft near one end is keyed a collar 3, having slots through which set-screws 5 pass into the end ot' the printingt'orn. The collar 3 has a tongue (i, against which abut the set-screws 7 and 8, secured on the end of the printing form. On the opposite end of theprinting form is keyed a collar 9, having slots 10, through which set-screws 11 pass into the end of the printing-form. '12 is a driving-gear abutting the collar 9 and keyed on the shaft 2. 13 and 14 are bushings adjustabl e in the boxes 15 and 16 and Secured in place by the set-screws 17 and 18. When the printingform is first mounted on its shaft, the setscrews 7 and S maybe employed to adjust the printing-form circumferentially on this shaft to the proper position, the screws 11 being loosened to permit this to be done. The longitudinal adjustment of the printing-form between the boxes 15 and 16 is acconplished by adjnsting the bushings 13 and let. The gearl has a marked tooth, by means of which as a guide the precise predeternined circunferential position of the printing-forn may be at once attained with respect to the cooperatin g parts of the press. This marked tnoth nay always enter a marked recessin a coperating gearin a printing-press, or it may enter a marked recess on the coperating part of a transfer-press. The precise predetermined longitndinal position of the printing-form in the press may be at once attained by the bushing 14, against which the hub of the gear 12 is n ade to accu ratel y fit when the printing-forn is removed and then replaced in the press. In removing the printing-form the box 15 is disconnected from the arm 19 and is then removed, together with its bushing 13. The printing-form, with the shaft 2, is then free to be removed from the press and without removing the box 16. The printing-torn has a body of such strength as to be capable of itself withstanding the pressure incident to transferring a design upon the printing-form and to printing with such printing-form. Ifdesired, however, I may provide the interiorof the printing-forn with a brace 20, adapted to bear against the shaft and calculated to give additionalstrength to the form. The form lis preferahly hollow, as shown, and is made'of any suitable material and has on its exterior an electrolytically-deposited coating of copper 21, upon which is another electrolyticallydeposited coating of Zinc 22. These coatings are integral with each other and with the underlying surface of metal and may be re- IOO moved by dissolving them in acid, so as not to change the size and form or their support, which may be predetermined. I may, if desired, use only one coating.

In Fig. 5 the printing-form 23 is hollow and has a body of such strength as to be capable of itself withstanding the pressure incident to transferring and printing. It consists of a base 24:, having an external printing-surface 25 of a differentmaterial, which is removable from and renewable on the base. This base may be made of aluminium, and the exterior coating 25 may be zinc electrolytically deposited upon another coating 26 of a suitable metal, such as copper, electrolytically deposited upon the base. The form is supported in and removable from the boxes 27 and 28 ot' the press by means of the end journals 29 and 30, from which the form is removable. Tapped in the heads of the form are the bushings 31 and 32, into which enter the journals 29 and 30. These journals are threaded for a short distance at their outer ends, so as to screw into the boxes. The journals are held from turning when in place by the locks 33 and 34 bearingagainstthe octagonal heads forned on the journals. 35 is agearsecured on the end of the form and having a marked tooth for the same purpose as the marked tooth refet-red to in connection With Fig. 1. In removing the form from the boxes the journals are unlocked and removed from engagement with the form, which may then be removed from the press. Bnshings 31 and 32 after being primarily adjusted and fixed in the ends of the form by their set-screws form guides with reference to which the form is 'mounted in the press in accurate predetermined longitudinal position, the bushings fitting snugly against the boxes.

In Fig. b' the printing-form 36 is of metal and preferably aluminium and is hollow, and its body is of suitable strength, snch as described. It is supported on the shaft 37, on which are permanently keyed the heads 38 and 39, fitting the interior of the form. 40 is a gear having a marked tooth for the purpose already described in connection with the gear in Fig. 1. Projecting from the outer sides of the heads 38 and 39 are collars having threaded recesses 4:1 and 42, in which screw the collars 43 and 44, the collars being held in adjusted position by set-screws. These collars hold the shaft 37 accurately in place in its boxes 45 and 4:6. In removing the form the clamps 47 are loosened and the form s'lipped lengthwise from the heads 38 and 39. The longitudinal position of the form on the shaft is determined by the offset 48 coming fiush against the head 38, and the circumferentia'l position of the form on the shaft is In Fig. 7 is shown a solid aluminium printing-form 51. It is provided at its ends with journals 52 and 53, permanently secured in place. On the journal 52 is Secured a gear 54:, having a marked tooth for the same purpose as that referred to in connection with the marked tooth of' the gear in Fig. 1. 55 and 56 are th readed collars adapted to be adjnsted on the threaded portions of the journals 52 and 53- and then permanently locked in place by their set-screws. The collars 55 and 56 are adjusted so as to fit accurately between the boxes 57 and 58, these collars determining the longitudinal position of the printing-form in the press. When the form is to be removed from the press, either the boX 57 or 58 is first removed and the form, together with its jonrnals, gear-wheel, and collars 55 and 56, may be taken from the press.

In Fig. 8 is shown a hollow metallic removable form of suitable strength, such as has been described and prefe'rably made of aluminiu m. It is removable from and replaceable on its shaft 60. The heads of the form 'are provided With ribs 61 and 62, which slide in a corresponding groove 63 in the shaft 60 and determine a circuinferential position of the form on its shaft. Screwed on the shaft are the adjnstable collars 64 and 65, adapted to be locked in place by set-screws. 66 is a gear having a marked tooth for the same purpose as the marked tooth of the gear already referred to in connection with Fig. 1. The shaft 60 is supported in boxes 67 and 68. In removing the printing-form from the press the box 68 and the collar are detaohed from the shaft, when the form may be slipped lengthwise from the shaft. The collar 64, which remains on the shaft, determines the longitndinal position of the form on its shaft when the form is replaced.

If desired, the printing-forms may be solid all the way through and removable from their shafts or permanently connected therewith by being keycd or cast thereon or otherwise connected therewith, or I may make a printing-form hollow or solid, any of these various kinds of forms having end journals permanently attached thcreto. Printing-forms may be developed so as to bc capable of re- -lief or intaglio printing; but they are preferably developed so as to be lithographic printing surfaces. They are preferably cylindrical,with continuous unbroken surfaces for printing.

In Fig. 10 is shown a series of my printingforms supported in position around an impression-surface 69, the marked tooth on the gear of each form entering a marked recess ot' the gear 70 of the impression-surfaee 69.

The printing-forms are preferably made by painstakingly shaping and forming and sizing and proportioning the body of the form and finishing and leveling its surface in every minute portion to the exact shape and form and size and printing height and plane required in the press, and where a coating is IOO IIO

applied to the body the characteristics of the complete composite form as to size,shape,and uniforn height and plane are determined by these features of the body. This feature of the invention is not restricted to a curve or rotating printing-form.

What I claim, and desire to secure by Letters Patent, is-- l. In a press the combination of a rotating lithographic printing-forn having a body of such strength as to be capable of itself withstanding the pressu re incident to transferring and printing, with prestablished guides with reference to which the printing-forn may be arranged in accurate predetermined relation with the coperating parts of the press and without the usual empiric adjustment.`

`2 In a press a combination of a hollow rotating lithographic printing-form having a body of such strength as to be capable of itself withstanding the pressure incident to transferring and printingwith prestablished guides with reference to which the printing- 'form may be arranged in accurate predetermined relation With the coperating parts of the press and without the usual empiric adjustnent. e

3. In a press a combination of a rotating lithographic inetallic printing-form having a body of such strength as to be capable of itself Withstanding the pressure incident to transferring and printing,with 'prestablished guides With reference to which the printingform may be arranged in accurate predeter mined relation with the coperating parts of the press and Without the usual empiric adjustnient.

4. In a press the combination of a rotating lithographic aluninium printing-form having a body of such strength as to be capable of itself withstanding the pressure incident to transferring and printing, with prestablished guides With reference to which the 'printing-form may be arranged in accurate predetermined relation With the coperating parts of the press and without the usual empiric adjustment.

5. In a press the combination of a hollow rotating lithographic netallic printing-form having a body of such stre'ngth as to be capable of itself' withstanding the pressure incident to transferring and printing, with preestablished guides with reference to which the printing-form may be arranged in accurate predeternined relation with the coper-,

ating parts of the press and without the usual empiric adjustment.

6. In a press the combination of a hollow rotating lithographic aluminium printingform having a body of such strength as to be capable of itself withstanding the pressure incident to transferring and printing, with p restablished guides with reference to which the printing-form may be arranged in accurate predetermined relation with the coperating parts of the press and Without the usual enpiric adjustment.

7. Ina press the combination of a rotating lithographic printing-for n having a body of such stength as to be capable of itself withstanding the pressure incidentto transferring and printing, with prestablished guides with reference to which the printing-form may be arranged in accurate predetermined relation with the coperating parts of the press and without the usual empiric adjustment, said printing-form having a continuous unbroken eXterior surface for printing 8. In a press a coinbination of a ho llow rotating: lithographic printing-form having a body of such strength as to be capable of itself withstanding the pressure incident to transferring and printing, with prestablished guides with reference to which the printingform may be arranged in accurate predetermined relation with the coperating parts of the press apd without the usual empiric adjustment,said printing-form having acontinuous unbroken exterior surface for printing.

9. In a press the combination of a rotating lithographic printing-form having a body of such strength as to be capable of itself withstanding the pressure incident to transferring and printing, with prestablished guides with reference to which the printing-form may be arranged in accurate predetermined relation with the coperating' parts of the press and without the usual einpiric adjustmeut, said printing-form having an eXterior removable and renewable coating to provide the surface for prnting.

IOO

10. In a press the combination of a rotating lithographic metallic printing-form having a body of such strength as to be capable of itself withstanding the pressure incident to transferring and printiug, with prestablished guides with reference to which the printingform may be arranged in accurate predetermined relation With the coperating parts of the press and Without the usual empiric adjustment, said printing-form having an exterior removable and renewable coating to provide the surface for printing.

ll. In a press the combination of a rotating lithographic printing-form having a body of such strength as to be capable of itself withstanding the pressure incident to transferring and printing, with prestablished guides With reference .to which the printing-forn may be arranged in accurate predeternined relation with the coperating parts of the press and Without the usual empiric adjustnent, said printing-forn having an electrolytically-deposited coating to provide the surface for printing.

12. In a press a combination of a rotating lithographic metallic printing-forn having a body of such strength as to be capable of itself withstanding the pressure incident to transferring and printing,with prestablished guides with reference to which the printingform may be arranged in accurate predetermined relation with the coperating parts of the press and without the usual enpiric ad- IIO justment, said printing-forn having an electrolytically-deposited coating to provide the surface for printing.

13. In a press the combination of a rotating lithographic printing-form having a body of such strength as to be capable of itself withstanding the pressu re incident to transferring y and printing, With prestablished guides with reference to which the printing-form may be arranged in accuratepredetermined relation with the coperating parts of the press and Without the usual empiric adjustment, said printing -'form being accurately sized and shaped and finished to adapt it to the coperating parts of the press.

14:. In a press a conbuation of a rotating lithographic metallic printing-form having a body of such strength as to be capable of itself withstanding the pressure incident to transferring and printing, With prestablished guides with reference to which the printingform nay be arranged in accurate predetermined relation With the coperating parts of the press and without the usual empiric adjustment, said printing-form being accurately sized and shaped and finished to adapt it to the coperating parts of the press.

15. In a press the combination of a rotating printing-form having a body of such strength as to be capable of itself withstanding the pressure incident to transferring and printing, with prestablished guides with reference to which the printing-form may be arranged in accurate predetermined relation with the coperating parts of the press and without the usual empiric adj ustnent.

16. In a press the combination of a rotating printing-form having a body of such strength as to be capable of itself withstanding the pressure incident to trausferring and printing, With prestablished guides with reference to which the printing-forn may be arranged in accurate predeternined relation with the coperating parts of the press and without the usual empiric adjustnent, said printingform having a continuous unbroken eXterior surface for printing.

17. In a press the combination of a rotating prin ting-forn having a body of such strength as to be capable of itself withstanding the pressure incident to transferring and printing, with prestablished guides with reference to which the printing-form may be arranged in accurate predetermined relation with the coperating parts of the press and Without,

the usu'al empiric adjustment, said printingform having an eXterior removable and renewable coating to provide the surface for printing.

18. In a press the combination of a rotating printiug-form having a body of such strength as to be capable of itself withstanding the pressure incident to transferring and printing, with prestablished guides with reference to which the printing-form may be arranged in' accurate predetermined relation with the .coperating parts of the press and without the usual empiric adjustment, said printingform having an electrolytically deposited coating to provide the surface for printing.

19. In a press the combination of a rotating printing-forrn having a body of such strength as to be capable of itself withstanding the pressure incident to transferring and printing, with prestablished guides with reference to which the printing-form may be arranged in accurate predetermined relation with the coperating parts of the press and without the usual enpiric adjustment, said printingform being accurately sized and shaped and finished to adapt it to the coperating parts of the press.

20. In a printing-press the combination of a series of rotating printing-forms each having a body of such strength as to be capable of itself withstanding the pressure incident to printing, With devices for inking the forms, and guides with reference to which said forms may be arranged in accurate predetermined relation with the coperating parts of this press and without the usual empiric adjustment.

21. In a printing-press the combination of a series of rotating printing-forms each having a body of such strength as to be capable 'of itself withstanding the pressure incident to printing, with devices for inking the forms and guides with reference to which said forms may be arranged in accurate predeterinined relation with the coperating parts of the press and without the usual empiric adjustment, each of said 'forms having a continuous unbroken exterior surface for printing.

22. In a printing-press the combination of a lithographic printing-form having a body of such strength as to be capable of itself withstanding the pressure incident to transferring and printing, said body having the exact size and shape and being of uniform height and plane such as will adapt it when provided with a suitable coating to coperate subsequently as a printing-surface with the other parts of a press in printing, said body being provided with a unifornly thick even layer or coating of material adapted to provide a surface for printing, the character-istics of the surface of the printing-form as to size and shape and height and level being determined by those of the base and prestablished guides with reference to which said form may be arranged in accurate predetermined relation with the coperating parts of the press and without the usual empiric adjustment.

23. In a printing-press the combination of a rotating lithographic printing-form having a body of such strength as to be capable of itself withstanding the pressure incident to transferring and printing, said body having the exact size and shape and being of uniforn .height and plane such as will adapt it when provided with a suitable coating to coperate subsequently as a printing-surface with the other parts of a press in printing, said body IIO being provided with a unifo'mly thiek even layer Oi' eoating of material adapted to provide a surface for printing, the characte'is- In testinony Whe'eof I have signed my ties of the surface of the printing-form as to I name to this specifieation in the presence of size and shape and height and level, being de- I two subseribing witnesses.

The press and Without the usual empirie ad- IO justnent.

termined by those of the base and prestab- EDWARD HETT.

lishedguides With reference to which said Witnesses:

form may be arranged in accurate predeter- N ICHOLAS M. GOODLETT, J r., mined reletion With the eoperating pa'ts of EDWIN SEGER. 

